diff options
| author | Shuijing Li <shuijing.li@mediatek.com> | 2023-05-15 12:49:55 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-05-15 15:51:16 +0300 |
| commit | 812562b8d881ce6d33fed8052b3a10b718430fb5 (patch) | |
| tree | f93fa4f62e623ba116747422ca1b0c58526602b5 | |
| parent | fe7f4e8d496552f880d7368b482d2ccac33780b7 (diff) | |
| download | linux-812562b8d881ce6d33fed8052b3a10b718430fb5.tar.xz | |
drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence
For "boe,tv105wum-nw0" this special panel, it is stipulated in
the panel spec that MIPI needs to keep the LP11 state before
the lcm_reset pin is pulled high.
Signed-off-by: Shuijing Li <shuijing.li@mediatek.com>
Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515094955.15982-3-shuijing.li@mediatek.com
| -rw-r--r-- | drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c index a5652d38acda..64e462f49c60 100644 --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c @@ -36,6 +36,7 @@ struct panel_desc { const struct panel_init_cmd *init_cmds; unsigned int lanes; bool discharge_on_disable; + bool lp11_before_reset; }; struct boe_panel { @@ -1365,6 +1366,10 @@ static int boe_panel_prepare(struct drm_panel *panel) usleep_range(10000, 11000); + if (boe->desc->lp11_before_reset) { + mipi_dsi_dcs_nop(boe->dsi); + usleep_range(1000, 2000); + } gpiod_set_value(boe->enable_gpio, 1); usleep_range(1000, 2000); gpiod_set_value(boe->enable_gpio, 0); @@ -1591,6 +1596,7 @@ static const struct panel_desc boe_tv105wum_nw0_desc = { .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_MODE_LPM, .init_cmds = boe_init_cmd, + .lp11_before_reset = true, }; static const struct drm_display_mode starry_qfh032011_53g_default_mode = { |